When building a reliable off-grid or camper van electrical system, simplicity, efficiency, and safety matter more than ever. That’s exactly where the SRNE SAA Series 3-in-1 MPPT stands out — a compact powerhouse combining Solar MPPT, DC-DC charger, and Smart Battery Charger in one intelligent unit.
Whether you’re travelling full-time, touring Europe on weekends, or building a professional camper conversion, the SAA Series delivers the easy wiring, high efficiency, and robust performance that modern lithium systems demand.
What Is the SRNE SAA 3-in-1 MPPT?
The SRNE SAA Series is a multi-functional charging controller designed to simplify your whole electrical setup by combining three devices into one:
1. High-Efficiency MPPT Solar Charge Controller
Tracks the maximum power point in real time
Up to 99% MPPT tracking efficiency
Harvests more energy than traditional PWM or basic MPPT controllers
Perfect for fixed or portable solar panels on campervans, motorhomes, boats, and off-grid cabins
2. Intelligent DC-DC Charger (Split-Charge System)
Charges your leisure battery from the vehicle alternator
Stable output even on Euro 5/6 smart alternators
Adjustable lithium, AGM, and gel profiles
Ensures safe, fast charging while driving
3. Smart AC Battery Charger
Ideal when plugged into campsite mains or generator power
Automatically adjusts charging stages based on battery type
Works seamlessly with lithium (LFP), AGM, Gel, Flooded, and calcium
Why the SAA Series Has Become a Game-Changer
Reduces Wiring & Installation Time
Instead of installing a separate MPPT, DC-DC charger, and AC charger, the SAA consolidates everything.
This means:
Less wiring
Fewer potential fault points
Faster installation
Cleaner, more compact campervan builds
Fully Lithium-Compatible
Designed for the newest LFP batteries, including SkyEnergi Edge/Core/Elite and other premium lithium packs.
Features include:
Customisable charge voltages
Stable current output
Accurate SOC and temperature management
Intelligent Priority Charging
The SAA prioritises charging based on available power sources:
Solar
Vehicle alternator
AC mains
This ensures maximum efficiency and minimal alternator strain.
Built-In Protection Systems
Over-voltage
Over-temperature
Short-circuit
Reverse polarity
Alternator protection
Perfect for new converters and advanced installers wanting peace of mind.
Who Is the SRNE SAA Designed For?
This 3-in-1 solution is ideal for:
Campervan and motorhome owners
Boat and marine systems
Off-grid cabins and sheds
Professional van converters looking to simplify builds
Anyone wanting a rugged, all-in-one power solution
If you're tight on space or want a tidy system with fewer components to manage, the SAA is a perfect upgrade.

Key Features at a Glance
3-in-1 design (MPPT + DC-DC + AC charger)
High-efficiency maximum power point tracking
Supports lithium, AGM, Gel, Flooded batteries
Bluetooth compatibility for the SRNE App
Real-time power monitoring (solar, alternator, and mains)
Multiple charge protection systems
Reliable performance in harsh environments
Why Choose the SRNE SAA from SkyEnergi?
SkyEnergi is a leading UK supplier of SRNE solutions, lithium batteries, and complete solar/electrical kits for campervans and off-grid systems.
When you buy from us, you benefit from:
UK warranty & technical support
Same-day dispatch
Expert advice for system design
Compatibility with SkyEnergi lithium batteries
We stock the full SRNE SAA range, including accessories, wiring kits, and ready-built systems.
Final Thoughts
The SRNE SAA 3-in-1 MPPT is one of the most efficient and user-friendly power management devices available today. By combining solar, alternator, and mains charging into one compact controller, it significantly simplifies your electrical build while improving performance.
If you want a modern, streamlined, and powerful campervan energy system, the SAA should be at the top of your list.
For further information contact us at
e: sales@skyenergi.com
t: 01777 801450